Molmo2 delivers state-of-the-art open-weight video VLMs with new grounding datasets and training methods that outperform prior open models and match or exceed some proprietary ones on pointing and tracking tasks.
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The Kinetics Human Action Video Dataset
Baseline reference. 62% of citing Pith papers use this work as a benchmark or comparison.
abstract
We describe the DeepMind Kinetics human action video dataset. The dataset contains 400 human action classes, with at least 400 video clips for each action. Each clip lasts around 10s and is taken from a different YouTube video. The actions are human focussed and cover a broad range of classes including human-object interactions such as playing instruments, as well as human-human interactions such as shaking hands. We describe the statistics of the dataset, how it was collected, and give some baseline performance figures for neural network architectures trained and tested for human action classification on this dataset. We also carry out a preliminary analysis of whether imbalance in the dataset leads to bias in the classifiers.
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- abstract We describe the DeepMind Kinetics human action video dataset. The dataset contains 400 human action classes, with at least 400 video clips for each action. Each clip lasts around 10s and is taken from a different YouTube video. The actions are human focussed and cover a broad range of classes including human-object interactions such as playing instruments, as well as human-human interactions such as shaking hands. We describe the statistics of the dataset, how it was collected, and give some baseline performance figures for neural network architectures trained and tested for human action class
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representative citing papers
Introduces the BAH dataset with 1,427 annotated videos for multimodal recognition of ambivalence/hesitancy in digital behavior change contexts.
LongVQUBench introduces a hierarchical benchmark with local, cross-event, and global quality understanding tasks plus needle distortion QA to measure LVLMs' long-term video quality reasoning.
SpikeTAD proposes the first SNN-based end-to-end TAD model, reporting 67.2% mAP on THUMOS14 and 37.42% on ActivityNet-1.3 with extremely low power consumption.
Surprise-gated episodic memory using V-JEPA-2 improves robot QA by ≥12% over prior memory methods and outperforms supervised baselines on event segmentation.
VidMsg is a new benchmark dataset and QA/retrieval tasks for implicit message inference in short videos, where current models perform poorly.
A large-scale empirical study across tokenizers and diffusion backbones identifies Velocity Irreducible Variance (VIV) as one of the most stable predictors of latent diffusion generation quality.
MMDG-Bench provides unified protocols and ten baselines for multimodal domain generalization, showing structured DG-MML combinations often outperform prior methods with insights on framework choice and backbone effects.
VideoABC estimates video-LLM failure probability via low-dimensional attribute projection, dual quantization (k-means plus lattice), and psychophysics-inspired synthetic data.
SVI-Bench provides 35K hours of sports video with 9 tasks across four cognitive levels, revealing models drop from ~74% on action QA to 5% on agentic evidence integration.
Domain-incremental video learning that permits forgetting through per-domain LoRA adapters and recovers the matching adapter at inference via test-time training on a self-supervised MAE reconstruction head.
YoCausal benchmark shows video diffusion models detect the arrow of time but lack genuine causal understanding relative to humans.
Uncertainty-DTW models pairwise correspondences with Normal distributions and uses an MLE objective with precision-weighted matching plus log-variance regularization for robust alignment of sequences and visual tokens.
Physics steering uses CAVs from PEZ-layer probes to directionally shift VideoMAE's physical expectations on IntPhys, with effects localized to the emergence zone and distinct from motion encoding.
Introduces the USV dataset of 224K short user-generated videos and benchmarks topic recognition plus video-text retrieval with MMF-Net and VTCL baselines.
Introduces FogAct paired clean-foggy video dataset and FogNet two-stream CLIP model that learns fog-invariant semantic representations via clean-video guidance.
PEIRA learns predictive encoders by optimizing the trace of the optimal inter-view linear regressor, with only nontrivial global minimizers as stable equilibria that recover leading nonlinear canonical correlation subspaces.
Minerva-Ego is a new benchmark for egocentric visual reasoning with dense human-annotated traces and masks, showing that spatiotemporal hints substantially improve frontier model performance.
PoseBridge recovers semantic information lost during skeletonization by extracting pose-anchored cues from human pose estimation and transferring them via skeleton-conditioned bridging and semantic prototype adaptation, yielding 13.3-17.4 point gains on the Kinetics PURLS benchmark.
RaPO reduces catastrophic forgetting in visual continual learning by shaping rewards around policy drift and stabilizing advantages with cross-task exponential moving averages during reinforcement fine-tuning of multimodal models.
LMMs perceive videos but underexploit visual content for causal reasoning due to textual shortcuts; ProCauEval diagnoses this and ADPO training reduces reliance on priors.
EyeCue detects driver cognitive distraction by modeling gaze-visual context interactions in egocentric videos and achieves 74.38% accuracy on the new CogDrive dataset, outperforming 11 baselines.
Temporal information in Video-LLMs is encoded well by video-centric encoders but disrupted by standard projectors; time-preserved MLPs plus AoT supervision yield 98.1% accuracy on arrow-of-time and gains on other temporal tasks.
McNdroid is a new longitudinal multimodal benchmark showing that Android malware detectors degrade over time but multimodal approaches maintain better performance across long temporal gaps.
citing papers explorer
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Exploring High-Order Self-Similarity for Video Understanding
The MOSS module learns and combines multi-order space-time self-similarity features to enhance temporal dynamics modeling in videos across action recognition, VQA, and robotic tasks.
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Multi-modal Test-time Adaptation via Adaptive Probabilistic Gaussian Calibration
A probabilistic Gaussian model with adaptive contrastive asymmetry rectification improves multi-modal test-time adaptation by modeling category distributions and correcting modality asymmetry for better predictions under shifts.
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EAST: Early Action Prediction Sampling Strategy with Token Masking
EAST uses randomized time-step sampling and token masking to train a single encoder-only model that generalizes across all observation ratios in early action prediction and reports new state-of-the-art accuracy on NTU60, SSv2, and UCF101.
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Identifying Ethical Biases in Action Recognition Models
The authors create a synthetic video auditing framework that detects statistically significant skin color biases in popular human action recognition models even when actions are identical.
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One Token per Highly Selective Frame: Towards Extreme Compression for Long Video Understanding
XComp reaches extreme video compression (one token per selective frame) via learnable progressive token compression and question-conditioned frame selection, lifting LVBench accuracy from 42.9 percent to 46.2 percent after tuning on 2.5 percent of standard data.
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From Pixels to Nucleotides: End-to-End Token-Based Video Compression for DNA Storage
HELIX is the first end-to-end neural codec jointly optimizing video compression and DNA encoding via tokens, achieving 1.91 bits per nucleotide with Kronecker mixing and FSM mapping.
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MaMe & MaRe: Matrix-Based Token Merging and Restoration for Efficient Visual Perception and Synthesis
MaMe is a differentiable matrix-only token merging method that doubles ViT-B throughput with a 2% accuracy drop on pre-trained models and enables faster, higher-quality image synthesis when paired with MaRe.
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Latent-Compressed Variational Autoencoder for Video Diffusion Models
A frequency-based latent compression method for video VAEs yields higher reconstruction quality than channel-reduction baselines at fixed compression ratios.
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Zero-shot World Models Are Developmentally Efficient Learners
A zero-shot visual world model trained on one child's experience achieves broad competence on physical understanding benchmarks while matching developmental behavioral patterns.
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Attention-Guided Dual-Stream Learning for Group Engagement Recognition: Fusing Transformer-Encoded Motion Dynamics with Scene Context via Adaptive Gating
DualEngage fuses transformer-encoded student motion dynamics with 3D scene features via softmax-gated fusion to recognize group engagement in classroom videos, reporting 96.21% average accuracy on a university dataset.
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DiffVC: A Non-autoregressive Framework Based on Diffusion Model for Video Captioning
DiffVC applies diffusion models for non-autoregressive video captioning, outperforming prior non-AR methods and matching AR ones in quality with faster speed on standard benchmarks.
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GIRL: Generative Imagination Reinforcement Learning via Information-Theoretic Hallucination Control
GIRL reduces latent rollout drift by 38-61% versus DreamerV3 in MBRL by grounding transitions with DINOv2 embeddings and using an information-theoretic adaptive bottleneck, yielding better long-horizon returns on control benchmarks.
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GeoWorld: Geometric World Models
GeoWorld applies hyperbolic geometry to JEPA world models and introduces geometric reinforcement learning, reporting modest success-rate gains of ~3% and ~2% on 3- and 4-step planning tasks versus V-JEPA 2.
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Structure Over Scale: Learning Visual Reasoning from Pedagogical Video
Fine-tuning VLMs on 10K QA pairs from pedagogical children's videos produces consistent gains on NExT-QA, Video-MME, and MotionBench, indicating that explicit structure can substitute for data scale.
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TACO: Towards Task-Consistent Open-Vocabulary Adaptation in Video Recognition
TACO proposes Relative Structure Distillation and a lightweight specialization projection to mitigate inconsistency between fine-tuning and evaluation objectives in open-vocabulary video recognition, claiming state-of-the-art results on cross-dataset and base-to-novel benchmarks.
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TuringViT: Making SOTA Vision Transformers Accessible to All
TuringViT claims a new ViT design with linear attention and curated data that matches SOTA performance using 10% of typical pretraining data while supporting dynamic resolutions and improving VLM integration.
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MilliVid: Hierarchical Latents for Long-Range Consistency in Video Generation
MilliVid compresses video frames into multi-scale token hierarchies and uses coarse-to-fine rollout in a diffusion model to maintain long-range geometric and object consistency on Minecraft videos.
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ReConFuse: Reconstruction-Error Guided Semantic Fusion for AI-Generated Video Detection
ReConFuse detects AI-generated videos by fusing WF-VAE reconstruction error patterns with multi-frame semantic features via a Mamba-based temporal model.
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Where Do We (Not) Need Temporal Context in Low-Resource Video Task Adaptation?
Systematic empirical comparison of temporal context placement across backbone, PEFT modules, and probes for low-resource video task adaptation on appearance, motion, and dense tasks.
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SeeTraceAct: Visibility-Aware Latent Planning from Cross-Embodiment Demonstration Videos
SeeTraceAct adds visibility-aware future end-effector trace prediction to demo-conditioned VLAs and reports higher success rates than baselines on RoboCasa-DC and a real Franka arm conditioned on human videos.
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EVA-Net: Subject-Independent EEG Motor Decoding with Video-Derived Motor Priors
EVA-Net improves subject-independent EEG motor decoding by using video action priors via cross-modal contrastive alignment and knowledge distillation, reporting an 8.66% LOSO accuracy gain on EEGMMI.
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Physical Object Understanding with a Physically Controllable World Model
Autoregressive probabilistic world models trained on raw videos yield emergent object segmentation, 3D controllability, and physical relationship inference via multi-future motion correlation analysis.
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Unified 3D Scene Understanding Through Physical World Modeling
A probabilistic graphical model called 3WM unifies 3D vision tasks into one system that performs them zero-shot by selecting different inference pathways through multimodal scene nodes.
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Balancing Multimodal Learning through Label Space Reshaping
BMLR reshapes the cross-modal label space to equalize mapping difficulty and balance optimization across modalities in multimodal learning.
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Spatio-Temporal Similarity Volume Aggregation for Open-Vocabulary Action Recognition
SimVA constructs a 4D similarity volume over video tokens and action classes then applies spatial, motion-aware, and Mamba-based temporal aggregation to achieve competitive zero-shot and few-shot performance on open-vocabulary action recognition benchmarks.
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ASAP: Attention Sink Anchored Pruning
ASAP prunes tokens in ViTs by anchoring on attention sinks modeled as lazy random walks, using cumulative transition matrices and radial diffusion clustering to compress redundancy while preserving accuracy.
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Video as Natural Augmentation: Towards Unified AI-Generated Image and Video Detection
VINA trains a single detector on images plus video frames using a cross-modal supervised contrastive objective, yielding bidirectional gains and SOTA results on 14 image, video, and in-the-wild benchmarks.
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CodeBind: Decoupled Representation Learning for Multimodal Alignment with Unified Compositional Codebook
CodeBind uses a modality-shared-specific codebook and compositional vector quantization to decouple shared semantic features from modality-unique details, achieving state-of-the-art multimodal classification and retrieval across nine modalities without requiring fully paired data.
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Parameter-Efficient Multi-View Proficiency Estimation: From Discriminative Classification to Generative Feedback
SkillFormer, PATS, and ProfVLM deliver state-of-the-art multi-view proficiency estimation on Ego-Exo4D with up to 20x fewer parameters by combining selective fusion, dense sampling, and generative feedback.
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Video Generation with Predictive Latents
PV-VAE improves video latent spaces for generation by unifying reconstruction with future-frame prediction, reporting 52% faster convergence and 34.42 FVD gain over Wan2.2 VAE on UCF101.
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MER-DG: Modality-Entropy Regularization for Multimodal Domain Generalization
MER-DG applies modality-entropy regularization to reduce fusion overfitting in multimodal domain generalization, reporting average gains of 5% over standard fusion and 2% over prior methods on EPIC-Kitchens and HAC benchmarks.
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Micro-DualNet: Dual-Path Spatio-Temporal Network for Micro-Action Recognition
Micro-DualNet employs dual ST and TS pathways with entity-level adaptive routing and Mutual Action Consistency loss to achieve competitive results on MA-52 and state-of-the-art on iMiGUE for micro-action recognition.
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CollideNet: Hierarchical Multi-scale Video Representation Learning with Disentanglement for Time-To-Collision Forecasting
CollideNet achieves state-of-the-art time-to-collision forecasting on three public datasets by combining multi-scale spatial aggregation with temporal disentanglement of trend and seasonality in a hierarchical transformer.
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NTIRE 2026 Challenge on Video Saliency Prediction: Methods and Results
The NTIRE 2026 Challenge released a public dataset of 2,000 videos with crowdsourced saliency maps and reported results from participating teams using standard quality metrics.
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Multimodal Ambivalence/Hesitancy Recognition in Videos for Personalized Digital Health Interventions
Multimodal deep learning for ambivalence/hesitancy recognition in videos yields limited results on the BAH dataset, highlighting the need for improved spatio-temporal and cross-modal fusion methods.
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Robust Fair Disease Diagnosis in CT Images
A combined logit-adjusted loss and CVaR objective improves macro F1 and reduces gender disparity in 3D CT classification of lung cancers, COVID-19, and normal cases on a benchmark with severe class and group imbalance.
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Mixture-of-Modality-Experts with Holistic Token Learning for Fine-Grained Multimodal Visual Analytics in Driver Action Recognition
MoME with HTL outperforms single-modal and multimodal baselines on driver action recognition by enabling adaptive expert collaboration and token-based intra- and inter-expert refinement.
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VDCook:DIY video data cook your MLLMs
VDCook is an automated, self-evolving platform for generating in-domain video datasets for MLLMs via natural language queries, retrieval-synthesis, and multi-dimensional metadata.
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Training-Free Composed Video Retrieval via Visual Representation-Guided Video-LLM Reasoning
Training-free composed video retrieval pipeline using DINOv3 for candidate selection and video-LLM reasoning achieves 48.78 Recall@1 and 51.48 Recall@5 on the CVPR 2026 challenge test set.
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Return of Frustratingly Easy Unsupervised Video Domain Adaptation
MetaTrans improves unsupervised video domain adaptation performance by separating and subtracting spatial and temporal divergences via a dedicated module and a minimal two-term loss objective.
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A Heterogeneous Two-Stream Framework for Video Action Recognition with Comparative Fusion Analysis
DualStreamHybrid assigns ViT-Tiny to RGB and MobileNetV2 to 20-channel flow, projects features to common space, and finds cross-attention best on UCF11 (98.12%) while weighted fusion is most consistent on UCF50 (96.86%).
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EV-CLIP: Efficient Visual Prompt Adaptation for CLIP in Few-shot Action Recognition under Visual Challenges
EV-CLIP introduces mask and context visual prompts to adapt CLIP for improved few-shot video action recognition under visual challenges such as low light and egocentric views, outperforming other efficient methods with backbone-scale-independent efficiency.
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RE-TRIANGLE: Does TRIANGLE Enable Multimodal Alignment Beyond Cosine Similarity in Retrieval?
Reproducibility study finds TRIANGLE yields up to +8.7 Recall@1 gains in zero-shot multimodal retrieval but fails to reproduce learning-from-scratch results owing to joint optimization instability with DTM loss.
- Frequency-Enhanced Diffusion Models: Curriculum-Guided Semantic Alignment for Zero-Shot Skeleton Action Recognition
- TrajTok: Learning Trajectory Tokens enables better Video Understanding